Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26038655
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Eur+J+Dent
2015 ; 9
(2
): 228-233
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The minimum residual root thickness after using ProTaper, RaCe and Gates-Glidden
drills: A cone beam computerized tomography study
#MMPMID26038655
Akhlaghi NM
; Bajgiran LM
; Naghdi A
; Behrooz E
; Khalilak Z
Eur J Dent
2015[Apr]; 9
(2
): 228-233
PMID26038655
show ga
OBJECTIVE: The aim of this study was to evaluate the minimum residual root
thickness (MRRT) of the danger zone after preflaring of the mesio-buccal (MB)
canal of mandibular first molars using ProTaper, RaCe and Gates-Glidden (GG)
drills as coronal shapers by cone beam computerized tomography (CBCT). MATERIALS
AND METHODS: In this experimental study, the initial CBCT scans of 75 MB canals
of mandibular first molars were provided within 1, 2, 3 and 4 mm of the furcation
level. The samples were divided into three groups. The samples of ProTaper and
RaCe groups were prepared up to F2 and #25.04 as the master apical file (MAF),
respectively. The coronal preparation of the samples in the GG group was done
using GG drills #2, #3 and #4 and canals were prepared till MAF # 25. After
obtaining the postinstrumentation images, the MRRT and the amount of removed
dentin were analyzed by t-test and ANOVA statistical analyses. RESULTS: The GG
drills removed significantly more dentin than RaCe at all the sections (P < 0.05)
and more than ProTaper at 3 mm from the furcation. Statistically there was no
significant difference between ProTaper and RaCe groups (P > 0.05). There was no
significant difference in MRRT between the groups (P > 0.05). The mean MRRT was
not < 0.75 mm at all sections. CONCLUSION: Based on the results of this study,
when an appropriate root thickness is initially present, all of the instruments
that were investigated may safely be used as coronal shapers in MB canals of
mandibular first molars.